Half to charles h



2 Sheets-Sheet 1.

(No Model.)

J.T.SOHERTZER DOOR FASTENING DEVICE.

Patented Oct. 31, 1882.

UNITED STATES PATENT OFFICE.

JULES T. SOHERTZEE, OF THE UNlTED STATES ARMY, ASSIGNOR OF ONE- HALF T0CHARLES H. SCHMIDT, ()F JEFFERSON BARRAGKS, MO.

DOOR-FASTENING DEVICE.

SPECIFICATION forming part of Letters Patent No. 266,903, dated October31, 1882.

' 7 Application filed May 24, 1882. No model.)

To all whom it may concern: 7

Be it knownthat I, JULEs T. SCHERTZER, (of the United States Army,)ofJefi'erson Barracks, St. Louis county, State of Missouri, haveinvented a certain new and useful Door-Fastening Device, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forming part of the same.

My invention consists, first, of a bolt or bolts thrown into engagementwith the door by lever or levers operated by the bolt of the doorlock asit enters the keeperupon the door-post, and relates to a device forreleasing the locking-bolts from the outside by means of the door-key. t

Figure l is a front view of my improved fastening, the device beingshown in its locked condition. Fig. 2 is a front view, showing thedevice unlocked. Fig. 3 is a section on the line 3 3, Figs. 1 and 2.

A is a part of the door, and 13 part of the door-post against which thedoor closes. C is an ordinary door-lock. The door is shown closed andlocked in Fig. 1, the position of thelevers and bolts whenunlookedbeingshown in Fig. 2.

D is the keeper upon the post B. Within the keeper is a vertical bar, F,against which the lock-bolt E impinges as itenters the keeper andpushesitinto the position shown by broken lines in Fig. 1. The bar F hasa horizontal guide pin or finger,f, passing through a hole in the backof the keeper.

G is a semi'elliptio spring, and G is a spiral spring. Thefingerfpassesthrough both these springs. They bear against the back of the keeper andthe bar F and tend to push the bar forward toward the door-lock.

f is a pin projecting from the bar Fthrough a horizontal slot in thekeeper.

H is a ratchet, pivoted ath to the keeper, and having an inclined orratchet tooth, h, engaging the pin f when the bar is in its rearposition, as shown in full lines. The ratchet-tooth is shown upon theupper side of the catch-bar, and the bar is shown as held upward byaspring, h but it is obvious that it might be reversed in position, thetooth h being on the under side. Then itlwould act by gravity and thespring k might be dispensed with.

I are links connecting the ends of the barF to the ends of levers J,t'ulcrumed to the doorpost B atj. i

The levers J are slotted at their outer ends at j for the passage ofpins is, projecting outward from the bolts K. The bolts K work betweenguides L, attached to the door-post, and when locked pass within keepersor staples M upon the face of the door. These staples are not essential,but impart added strength.

The device, as described, is complete if access can be had to theinterior to unlock the door.

t I will now describe the device for releasing the pin f from theratchet h by a suitable key from the outside.

N is a strap secured to the outside of the look by the ordinary screws,02 n, by which the outer end of the lock is attached to the door. Thisstrap has a number of pin-holes, it, into any one of which afulcrum-pin, O, isinserted, this arrangement being made to accommodatethe lever P to key-holes of different positions in the lock. The lever Pis slotted at p for the passage of the fulcrum-pin O. The pin 0 has ahead, 0, and between the head and the lever is a spiral spring, Q, whichbears againstthe outside of the lever and keeps it in contact with thestrap. One end ofthelever P is connected by an eccentric pin, a", to adisk, R, having a key-stud that is inserted in the key-hole ot' the lockfrom the inside and turns therein. Thus it will be seen that by turningthe disk R the end of the lever P, connected thereto, is raised orlowered and the free end 19 of the lever is moved in the oppositedirection.

It will be understood-that the disk is turned by a keyintroduced intothe key-hole from the outside. The movement ofthe lever brings its freeend against the free end of the ratchet H, and by pressure against thesame disengages its tooth from the pin f to allow the bar F to movetoward the door, which it then does, under the influence of the springG, and draws back the bolts. with a stud to enter the disk, so that thebolt E is thrown back by the same movement that releases the bar-pin ffrom the ratchet or detent tooth It, so that there is no impediment tothe described movement of the bar F in releas- The end of the lock-keyis made 5 ing the door from the bolts K. There is a keyhole in the disk.

1 claim as my invention 1. The combination, with a door-look on onemember, of a bar, lever, and bolt on the other member, the bar and leverbeing operated by the lock-bolt of the door-lock to throw the other boltinto engagement with the opposit member, as set forth.

2. The bar F, actuated by the lock-bolt E, with detent H to hold the barF, lever J, and bolt K in looking position, substantially as set forth.

3. The combination, with the detent H, of

JULES T. SOHERTZER.

Witnesses:

SAML. KNIGHT, GEO. H. KNIGHT.

